| 摘要 |
Said compositions comprise an aqueous solution of fluorhydric acid (0.5-6%) and a fluorinated non-ionic surfactant (0.01-0.1%). The impregnation of a mineral surface which contains silicon with one of said compositions provides for the formation of microscopic cavities in the treated surface, thereby, improving the adherence of said surfaces in wet conditions, marking them non-slippery. Said compositions are useful to produce non-slipping pavings and floorings. |
